Lubricator



(No Model.)

W. H. CRAIG.

LUBRIGATOR. No. 277,464. Patented May 15,1883. v

N. PETERS. Pholciflhugnphor, wmin m D. cv

UNITED STATES PATENT @rnrcn.

WARREN H. CRAIG, OF LAWRENCE, MASSACHUSETTS.

LUBRICATO R.

SPECIFICATION forming part of Letters Patent No, 277,464, dated May 15,1883.

Application filed March 12, 1883. (No model.)

To all whom it may concern:

Be it known that I, WARREN HILLIARD CRAIG, of Lawrence, in the county ofEssex and State of Massachusetts, haveinvented new and usefulImprovements in Lubricators, of which the following .is a full and cleardescrip- [1011.

This invention relates to that class of lubricators in which thelubricant is displaced by the admission of condensed steam tothe-oilreservoir, thereby forcing the lubricant from 'the cup orreservoir through the outlets provided therefor to the parts of themachine to be lubricated.

My invention consists in a novel construction of parts and chambers bywhich the water may be regulated and seen as it passes downward throughthe lubricant, and also the lubricant can be seen as it passes to thesteaminlet or oil-outlet, to be discharged through the same to thesteam-pipe of engine.

Figure l is a side elevation. Fig. 2 is a section taken on a plane withFig. 1. Fig.8 is a section taken atright angles to Figs. 1 and 2.

In Fig.2, A is the steam-inlet, provided with a tube, 1), extending upinto condenser B, in which the steam becomes condensed to supply thewater for displacing the oil. In the lower portion of A there is achamber,'a, provided with a partition, 0, curved at the bottom andextending up past the steam'inlet, thus formin g a wa-tentrap. Directlyin front of partition C, and on 'a line with the steam-inlet A, is aglass plate or observation-port, D. In the bottom of chambera is a tube,6, connecting with the oil-chamber E. Directly in front of theobservation-port D artitiop g isd ighlan polished to for n a light-rm Itwill thereiore be fih d e rstood that ,the lubricant, when displaced bywater, as hereinafter described, will pass out of tube a up through thewater condensed in the trap a, and be seenas it passes theobservation-port I) and over the polished portion of partition 0, orinclose connection thereto, and discharging over partition 0 to thesteam-pipe of engine-cylinder. By reference to Fig. 3 the displacementof the lubricant by water will be more clearly understood. The steam,having entered the condenserB through the pipe b, becomes condensed intowater. passing down passage F to the oil reservoir E. The lowerportiouof passage F is provided with a valve, f, and a valve-seatprojection, G,extending into the oil-reservoir E, valve-seat projection G beingprovided with a passage,.g, leading upward from seat of valve f to theupper portion of valve-seat projection G, where it is provided with arecess or opening leading to the polished face of valveseat projectionG, and is better shown at h in elevation, Fig. 1. In front of recess oropening it, and ona line with valve f, is arranged a glass pane orobservation-port, H, in close connection with the polished face ofvalve-seat projection Gr, so that the drop of water, after leaving therecess h. may be seen as it passes down between the glass pane and thepolished face of the valve-seat projection G. The advantage of theupward passage g and the recess h, in connection with the valve seatprojection G, over that shown and described in a previous application byme for Letters Patent on improvements in lubricators is that the oil,after the discharge of the water-drop, does "not back into thewater-outlet and have to be forced at each discharge. The drop beingformed in the recess 11, when it attains a proper size it will leave therecess and pass down between the polished valveseat projection G and theglass'pane H, leaving the upward passage 'g filled with water andcontinuing to feed, no extra head of water being required to insure acontinuous and regular feed.

In Fig. 1, I is a valve provided with a hopper through which thereservoir is supplied with oil. Valve J, at the extreme bottom, is usedto draw the fluid from the reservoir. The manner in which the lubricatoris usually attached to the steam-pipe of engine is by means of a unionmade fast to the steaminlet A and connecting with a valve commonly inuse to the steam-pipe of engine, thus allowing the lubricator to beremoved at any time when the steam-pipe of engine is filled with steam.

I am aware that my invention may be applied in different ways, one ofwhich is by closing or dispensingwith the tube 1) and connecting a pipeto the top of condenser B and connecting it with the steam-pipe ofengine,

using the steam-inlet Aas an oil-discharger ervoir and located below theglass pane and only; but the way I have shown it is preferab e.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. In a lubricator, a steam-chamberprovided with a partition, 0, extending up nearly to top of suchchamber, and arranged so as to form a water-trap in the lower portion ofsaid steam-chamber and extending to the top of partition O, thewater-trap to be provided with a drop-tube, e, connecting-it to theoil-reservoir, the trap also having a glass pane directly in front ofthe polished portion of partition 0, located above the drop-tube a,substan tially as shown and described. l

2. In a lubricator, a water trap or chamber provided with a glass paneor observation-port directly in front of a highly-po1ished reflector,and containing a drop-tube leading to oil-res reflector, and having adischarge "above the same to the steam-pipe, substantially as shown, andfor the purpose described.

3. In a lubricator, the combination of the water-valve f, valve-seatprojection G, having an upward passage, g, recess h, and polishedportion with observation-port H,arran ged substantially as shown.

'4. The projection G, set in close connection with the glass pane andprovided with openward and connecting through the chamber of valvef withthe water-passage F, substantially as shown and described. a

WARREN HILLIARD CRAIG.

Witnesses THOMAS J. GATE, E. PRESTON FOGG.

